Seagate ST3500413AS ST3500418AS ST500DM002 HDD Head Swap Tips

ST500DM002 ST3500418AS ST3500413AS 100535704 Rev c…
For most 7200.12 and 7200.11 drives with 2 heads, their heads type is the same.

Barracuda 7200.12 .11
500GB

These drives have usually 2 heads and the head has two types: BR2 and PH2(head QR number),only if the head type is the same, the heads match well. Even if the model numbers are different, the heads can match too.

Please note: The physically damaged drives of above get often scratches on the platters. Users need to check the heads and surfaces carefully and in many cases, users need to clean the platters and adjust the motor balance and in many cases, users may need several donors to complete the case and it is normal.